package cn.commander.utils;

import java.security.SecureRandom;
import java.util.UUID;

/**
 * @Description: 封装各种生成唯一性ID算法的工具类.
 * @Created by:
 * @Date: 2016/7/7 20:22
 * @Version: 1.0
 */

public class IdGen {

	private static SecureRandom random = new SecureRandom();

	/**
	 * 封装JDK自带的UUID, 通过Random数字生成, 中间无-分割.
	 */
	public static synchronized String uuid() {
		return UUID.randomUUID().toString().replaceAll("-", "");
	}

	/**
	 * 使用SecureRandom随机生成Long.
	 */
	public static synchronized long randomLong() {
		return Math.abs(random.nextLong());
	}
}

